/Engine/Plugins/Experimental/PCG/Source/PCG/Public/PCGGraph.h
Add/Remove given property from overrides, and reset its value if it is removed. Returns true if the value was changed.
bool UpdatePropertyOverride ( const [FProperty](API\Runtime\CoreUObject\UObject\FProperty) * InProperty, bool bMarkAsOverridden, const [FInstancedPropertyBag](API\Plugins\StructUtils\FInstancedPropertyBag) * ParentUserParameters )